External metallic joint for escape-pipes



(Ngs Model.)

M. P. MGR-AN. l EXTERNAL METALLIC JOINT FOR ESCAPE PIPES.

No. 538,429. Patented Aprn 80, 189.5.

i NITEDF STATES PATENT OFFICE.

MYLES F. MORAN, 0F LYNN, MASSACHUSETTS.

lEXTERNAL METALLICJO/INT FOR ESCAPE-PIPES.

SPECIFICATION forming part of Letters Patent No. 538,429,`dated April30, 1895.

Application led January 14, 1895. Serial No. 534,77 7. (No model.)

.To a/ZZ whom, t may concern.-

Be it known that I, MYLES F. MORAN, of Lynn, countyot' EsseX,'State ofMassachusetts, have invented an Improvement in External Metallic Jointsfor Escape-Pipes, of which the following description, in connection withthe accompanying drawings, is a specification, like letters on thedrawings representing like parts. Y

This invention has for its object the production of an external jointfor escape pipes, whereby a tight metallic joint may be made above theroof of the building without the use of molten metal.

In making-so called poured joints oaku-m or other similar material isinserted and wedged into the space between the pipe and a surroundingmetallic hub, and molten lead is then poured upon the supportingmaterial' and allowed to cool, after which it is usually hammered. Thismethod is dangerous for the workman, as care has to be exercised inhandling the molten metal, and in wet or slippery Weather the danger isgreatly increased because the proper attention cannot be paid to themovements of the workman, and serious falls frequently occur. I haveobviated this by surrounding the escape pipe above the roof with a rigidmetallic sleeve, and driving into the annular space between them awedgelike lead packing ring at the upper end of the sleeve, the ringpreferably being tempo rarily attached to the sleeve for convenienceintransportation. When hammeredinto place the ring makes a water ormoisture tight joint above the roof. u

Figure l in vertical section represents one form of external joint forescape-pipes embodying my invention, the parts being shown in positionon a roof. Fig.2 is asimilar view of the joint-supporting sleeve withthe packing-ring temporarily attached thereto. Fig. 3 is a modifiedform, in section, of the sleeve and packing. Fig. 4 is yet anothermodification to be described, and Fig. 5 represents in section thesleeve with another form of joint at its base.

The upper end of the escape pipe Pis extended through a hole d in theroof a, Fig. l, and a laterally flanged and preferably rigid base@beveled to correspond with the slant of the roof, rests thereupon andsurrounds the pipe. The flange h of the base may be of sufficient widthto extend under the shingles or slates s, or preferably a sheet ofmalleable metal c, such as lead or copper, is beaten up around the baseand over its flange b', and the shingles are overlapped on this metallicsheet.

A joint supporting sleeve d, Figs. l and 2 preferably flanged at itslower end, as at d', is mounted on the base, surrounding it and the pipeP, the upper end of the sleeve being beveled at its inner end, as at d2,andv forming a projecting lip or shoulder d3. A ring e of lead,substantially wedge-shaped in crossv section, normally rests on thebeveled edge cl2 of the sleeve, and is bent over at e under the shoulderd3, to form a temporary attachment between the ring and sleeve, forconvenience in transportation, the sleeve and attached ring beingslipped over the pipe P until the lower beveled end of the sleeve restson the base flange b', or upon the interposed malleable sheet c. Theworkman then hammers the lead ring down tightly into the annular spacebetween the pipe and the upper end of the sleeve a, forming thereby awater tight joint above the roof, and preventing moisture from enteringbetween the pipe and sleeve, the wedge-like form of the packing ring eassisting in guiding it into place.

In the modication shown in Fig. 3 the sleeve f has sharp upper corners,and in casting it is provided with a plurality of preferably pointedprojections f, onto which is pressed the depending flange g of thewedgelike packing ring g. When the latter is hammered into place theproj ections f are usually broken offA in the operation, they yhaving nofunction other thanto form a means for temporarily holding the ringv inplace on the sleeve during transportation. 4

e In the modification shown in Fig. 4 the sleeve h is interiorly groovedat h', and the depending portion i of the packing ring vl i bent up toenter it. v

Whatever the form of the upper end of the sleeve, or the means forattaching the packing ring tem porarily' thereto, the sleeve forms arigid outer Wall for the joint when hammered into place. No oakum orsimilar pack IOO ing material is required, and the use of molten metalin making the joint is absolutely dispensed with.

By temporarily attaching the joint making ring to the sleeve the twoparts are always :ready for use, saving time and labor to the workman.

It will be obvious that when the joint is completed the temporaryconnectionbetween the sleeve and ring has no further function.

The hub like portion of the base b inserted within the lower end of thesleeve, with the overlapping of the shingles or roof slates s, insuresthe tightness of the joint around the pipe hole a in the roof.

In Fig. 5 the base of the sleeve m, which in other respects is like thesleeve f, is annularly recessed or grooved at its lower end at m', toreceive therein the upturned lip or edge n of a sheet n of preferablymalleable metal,such as lead, the shingles overlapping the sheet and thelateral flange m2 of the sleeve, which in thisinstance forms the base. Apacking p, which may be either a ribbon of lead beaten into the recessfm between its inner Wall and the lip n', or a poured joint, made beforethe sleeve is placed in position upon the roof, keeps the junction ofthe roof and the sleeve moisture-tight, and obviates the use of aseparate base, such as b, shown in Fig. 1, and in some instancesispreferable thereto.

When the sheet n is made of lead, the packingp forms a most perfectjoint between its upturned lip or and the iron sleeve.

I claim- 1. In an external joint for escape pipes, a rigid metallicsleeve to surround the pipe above the roof, a wedge-like leadpackingring adapted to be driven into the annular space between the pipeand the upper end of the sleeve, to form a joint above the roof, andmeans to temporarily connect said ring and sleeve comprising aprojecting portion on one to engage a part of the other, substantiallyas described.

2. An external joint for escape pipes, consisting of a rigid metallicsleeve to surround the pipe and flanged at its lower end, a laterallyflanged base to rest upon the roof, and enter the lower end of thesleeve, a lead packin g-ring adapted to be driven between the pipe andthe upper end of the sleeve, to form a joint above the roof, and meansto temporarily connect said ring and sleevecomprising la projectingportion on one to engage a part` `of the other, substantially asdescribed.

3. In an external joint for escape pipes, a flanged base to rest on theroof around the pipe, a joint supporting sleeve mounted thereon andoutwardly flanged` at its lower end, pointed projections on the innersurface of the sleeve near its upper end, and a wedgelike lead ringattachedto the upper end of the sleeve, by said proj ections and adaptedto be driven into the annular space between it and the pipe, and therebyform a joint above the roof, substantially as described..

4. In an external joint for escape pipes, a rigid metallic sleeve tosurround the pipe above the roof and havingan annular recess in itslower end, a metallic packing-ring adapted to be driven into the annularspace between the pipe and the upper end of the sleeve, to form a jointabove the roof, asheet of metal having an` upturnedlip to enter therecess in the sleeve, and a packing interposed between said lip and onewall of the recess, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

Witnesses:

JOHN C. EDWARDS, EMMA J. BENNETT.

